Charge up your smaller devices with the Goal Zero Flip 20 Recharger. The Flip 20 will recharge your device via USB so you can rock out to your favorite tunes all the time. The small design allows it to fit easily into your pocket or backpack. Capacity: 18.7Wh, Power Output: USB, Weight: 4.6oz, Recharge by: USB and Solar, Ideal for: Phone, GPS, Headlamp and Fitness Trackers, Model Year: 2017, Product ID: 434367, Model Number: 21907, GTIN: 0847974003497